#include <RezLoader.h>
#include <RezArchive.h>
#include <rez.h>
#include <irrlicht.h>
#include <cstring>

bool RezLoader::isALoadableFileFormat(const irr::io::path &filename) const
{
    return irr::core::hasFileExtension(filename, "rez");
}

bool RezLoader::isALoadableFileFormat(irr::io::IReadFile *file) const
{
    char buf[sizeof rez::ball::title], *p = buf;
    size_t rem = sizeof buf;

    while (rem)
    {
        irr::s32 n = file->read(p, rem);

        if (n < 0)
            return false;

        p += n;
        rem -= n;
    }

    return !strcmp(buf, rez::ball::title);
}

bool RezLoader::isALoadableFileFormat(irr::io::E_FILE_ARCHIVE_TYPE fileType) const
{
    return fileType == static_cast<irr::io::E_FILE_ARCHIVE_TYPE>
        (MAKE_IRR_ID('r', 'e', 'z', 0));
}

irr::io::IFileArchive *RezLoader::createArchive(const irr::io::path &filename,
    bool ignoreCase, bool ignorePaths) const
{
    RezArchive *archive = new RezArchive(filename);

    if (archive->parse())
    {
        delete archive;
        return nullptr;
    }

    return archive;
}

irr::io::IFileArchive *RezLoader::createArchive(irr::io::IReadFile *file,
    bool ignoreCase, bool ignorePaths) const
{
    // TODO: how to do that?
    return nullptr;
}